Climatological Report (Annual)
Issued by NWS Portland, ME

000
CXUS51 KGYX 022226
CLAPWM

PWMCLAPWM 000
TTAA00 GYX 021944

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
244 PM EST TUE JAN 02 2024

...................................

...THE PORTLAND ME CLIMATE SUMMARY FOR THE YEAR OF 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1941 TO 2023 (FOR TEMPERATURES)
CLIMATE RECORD PERIOD: 1871 TO 2023 (FOR PRECIPITATION)
CLIMATE RECORD PERIOD: 1882 TO 2023 (FOR SNOWFALL)

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            103   08/02/1975
 LOW             -39   02/16/1943
HIGHEST           89   05/28         93      -4       96  08/07
                       07/12
LOWEST           -14   02/04        -10      -4       -7  01/31
AVG. MAXIMUM    57.1               56.4     0.7     57.6
AVG. MINIMUM    40.4               38.6     1.8     38.8
MEAN            48.8               47.5     1.3     48.2
DAYS MAX >= 90     0                5.1    -5.1        7
DAYS MAX <= 32    21               40.7   -19.7       39
DAYS MIN <= 32   136              144.1    -8.1      130
DAYS MIN <= 0      3                6.7    -3.7        7

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       66.45   2005
 MINIMUM       25.27   1941
TOTALS         56.67              48.12    8.55    46.66
DAILY AVG.      0.16               0.13    0.03     0.13
DAYS >= .01      141              131.4     9.6      118
DAYS >= .10       85               80.0     5.0       70
DAYS >= .50       39               30.9     8.1       30
DAYS >= 1.00      18               11.9     6.1       16
GREATEST
 24 HR. TOTAL   3.24   09/18 TO 09/19

SNOWFALL (INCHES)
RECORDS
 TOTAL         150.1   1956
TOTALS          52.5               68.7   -16.2     36.6
SINCE 7/1        0.7               17.1   -16.4      4.7
SNOWDEPTH AVG.     1
DAYS >= TRACE     48               28.6    19.4       36
DAYS >= 1.0       10               16.4    -6.4        5
GREATEST
 SNOW DEPTH       15   03/05
 24 HR TOTAL     9.1   01/22 TO 01/23

DEGREE DAYS
HEATING TOTAL   6197               6795    -598     6544
 SINCE 7/1      2182               2451    -269     2252
COOLING TOTAL    423                447     -24      542

FREEZE DATES
RECORD
 EARLIEST     09/14/1963
 LATEST       05/31/1961
EARLIEST                        10/31
LATEST                          05/18
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.2
HIGHEST WIND SPEED/DIRECTION    40/150    DATE  12/18
HIGHEST GUST SPEED/DIRECTION    59/160    DATE  12/18

SKY COVER
AVERAGE SKY COVER           0.56

AVERAGE RH (PERCENT)     74

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             19     HEAVY RAIN                33
RAIN                     61     LIGHT RAIN               145
FREEZING RAIN             0     LT FREEZING RAIN           4
HEAVY SNOW                3     SNOW                      11
LIGHT SNOW               47     FOG                      189
FOG W/VIS <= 1/4 MILE    37     HAZE                      28

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

THE AVERAGE TEMPERATURE FOR THE YEAR WAS 48.8 DEGREES, WHICH WAS 1.3
DEGREES ABOVE NORMAL AND TIED FOR THE FOURTH WARMEST YEAR ON RECORD.
THE WARMEST YEAR ON RECORD WAS 2020 WHEN THE AVERAGE TEMPERATURE WAS
49.4 DEGREES. THE COOLEST YEAR ON RECORD WAS IN 1962 WHEN THE
AVERAGE TEMPERATURE WAS 43.3 DEGREES. THE FOLLOWING TABLE LISTS THE
WARMEST YEARS ON RECORD AT PORTLAND.

WARMEST ANNUAL AVERAGE TEMPERATURE (SINCE 1941).
RANK  AVE   YEAR
1     49.4  2020
2     49.2  2012
      49.2  2010
4     48.8  2023  <===
      48.8  2021
6     48.5  2016
      48.5  2006
8     48.3  1998
9     48.2  2022
10    48.1  1990

A TOTAL OF 56.67 INCHES OF PRECIPITATION FELL, WHICH WAS 8.55 INCHES
ABOVE NORMAL. THE WETTEST YEAR ON RECORD WAS IN 2005 WHEN 66.40
INCHES OF PRECIPITATION FELL. THE DRIEST WAS 25.28 INCHES IN 1941.

A TOTAL OF 52.5 INCHES OF SNOW FELL, WHICH WAS 16.2 INCHES BELOW
NORMAL. THE LEAST SNOWY YEAR ON RECORD WAS 1973 WHEN ONLY 27.5
INCHES FELL. THE SNOWIEST YEAR ON RECORD WAS 1956 WHEN 150.1 INCHES
FELL.

$$

DS